Question

What is the value of y?

Answer 1

Step-by-step explanation:

y=180'-(59.3'+78.5')

y=180'-(137.8')

y=42.2'

degree='

Answer 2

Answer: y = 42.2°

Explanation:

We know that a straight line is equal to 180 degrees. We will set up an equation with the given values and solve.

59.3° + y + 78.5° = 180°

137.8° + y = 180°

(137.8° + y) -137.8° = (180°) - 137.8°

y = 42.2°